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<div id="overview"><a href="../../../../../../../api/org/jboss/netty/handler/codec/socks/SocksCmdResponseDecoder.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2012 The Netty Project</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * The Netty Project licenses this file to you under the Apache License,</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * version 2.0 (the "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * with the License. You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.handler.codec.socks;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffer;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.Channel;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelHandlerContext;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.replay.ReplayingDecoder;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.CharsetUtil;
<a class="jxr_linenumber" name="23" href="#23">23</a>  
<a class="jxr_linenumber" name="24" href="#24">24</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="25" href="#25">25</a>  <em class="jxr_javadoccomment"> * Decodes {@link ChannelBuffer}s into {@link SocksCmdResponse}.</em>
<a class="jxr_linenumber" name="26" href="#26">26</a>  <em class="jxr_javadoccomment"> * Before returning SocksResponse decoder removes itself from pipeline.</em>
<a class="jxr_linenumber" name="27" href="#27">27</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksCmdResponseDecoder.html">SocksCmdResponseDecoder</a> <strong class="jxr_keyword">extends</strong> ReplayingDecoder&lt;SocksCmdResponseDecoder.State&gt; {
<a class="jxr_linenumber" name="29" href="#29">29</a>  
<a class="jxr_linenumber" name="30" href="#30">30</a>      <strong class="jxr_keyword">private</strong> SocksMessage.ProtocolVersion version;
<a class="jxr_linenumber" name="31" href="#31">31</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> fieldLength;
<a class="jxr_linenumber" name="32" href="#32">32</a>      <strong class="jxr_keyword">private</strong> SocksMessage.CmdStatus cmdStatus;
<a class="jxr_linenumber" name="33" href="#33">33</a>      <strong class="jxr_keyword">private</strong> SocksMessage.AddressType addressType;
<a class="jxr_linenumber" name="34" href="#34">34</a>      <strong class="jxr_keyword">private</strong> byte reserved;
<a class="jxr_linenumber" name="35" href="#35">35</a>      <strong class="jxr_keyword">private</strong> String host;
<a class="jxr_linenumber" name="36" href="#36">36</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> port;
<a class="jxr_linenumber" name="37" href="#37">37</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksResponse.html">SocksResponse</a> msg = SocksCommonUtils.UNKNOWN_SOCKS_RESPONSE;
<a class="jxr_linenumber" name="38" href="#38">38</a>  
<a class="jxr_linenumber" name="39" href="#39">39</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksCmdResponseDecoder.html">SocksCmdResponseDecoder</a>() {
<a class="jxr_linenumber" name="40" href="#40">40</a>          <strong class="jxr_keyword">super</strong>(State.CHECK_PROTOCOL_VERSION);
<a class="jxr_linenumber" name="41" href="#41">41</a>      }
<a class="jxr_linenumber" name="42" href="#42">42</a>  
<a class="jxr_linenumber" name="43" href="#43">43</a>      @Override
<a class="jxr_linenumber" name="44" href="#44">44</a>      <strong class="jxr_keyword">protected</strong> Object decode(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/channel/Channel.html">Channel</a> channel,
<a class="jxr_linenumber" name="45" href="#45">45</a>                              <a href="../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> buffer, <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksInitResponseDecoder.html">State</a> state) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="46" href="#46">46</a>          <strong class="jxr_keyword">switch</strong> (state) {
<a class="jxr_linenumber" name="47" href="#47">47</a>              <strong class="jxr_keyword">case</strong> CHECK_PROTOCOL_VERSION: {
<a class="jxr_linenumber" name="48" href="#48">48</a>                  version = SocksMessage.ProtocolVersion.fromByte(buffer.readByte());
<a class="jxr_linenumber" name="49" href="#49">49</a>                  <strong class="jxr_keyword">if</strong> (version != SocksMessage.ProtocolVersion.SOCKS5) {
<a class="jxr_linenumber" name="50" href="#50">50</a>                      <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="51" href="#51">51</a>                  }
<a class="jxr_linenumber" name="52" href="#52">52</a>                  checkpoint(State.READ_CMD_HEADER);
<a class="jxr_linenumber" name="53" href="#53">53</a>              }
<a class="jxr_linenumber" name="54" href="#54">54</a>              <strong class="jxr_keyword">case</strong> READ_CMD_HEADER: {
<a class="jxr_linenumber" name="55" href="#55">55</a>                  cmdStatus = SocksMessage.CmdStatus.fromByte(buffer.readByte());
<a class="jxr_linenumber" name="56" href="#56">56</a>                  reserved = buffer.readByte();
<a class="jxr_linenumber" name="57" href="#57">57</a>                  addressType = SocksMessage.AddressType.fromByte(buffer.readByte());
<a class="jxr_linenumber" name="58" href="#58">58</a>                  checkpoint(State.READ_CMD_ADDRESS);
<a class="jxr_linenumber" name="59" href="#59">59</a>              }
<a class="jxr_linenumber" name="60" href="#60">60</a>              <strong class="jxr_keyword">case</strong> READ_CMD_ADDRESS: {
<a class="jxr_linenumber" name="61" href="#61">61</a>                  <strong class="jxr_keyword">switch</strong> (addressType) {
<a class="jxr_linenumber" name="62" href="#62">62</a>                      <strong class="jxr_keyword">case</strong> IPv4: {
<a class="jxr_linenumber" name="63" href="#63">63</a>                          host = SocksCommonUtils.intToIp(buffer.readInt());
<a class="jxr_linenumber" name="64" href="#64">64</a>                          port = buffer.readUnsignedShort();
<a class="jxr_linenumber" name="65" href="#65">65</a>                          msg = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksCmdResponse.html">SocksCmdResponse</a>(cmdStatus, addressType);
<a class="jxr_linenumber" name="66" href="#66">66</a>                          <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="67" href="#67">67</a>                      }
<a class="jxr_linenumber" name="68" href="#68">68</a>                      <strong class="jxr_keyword">case</strong> DOMAIN: {
<a class="jxr_linenumber" name="69" href="#69">69</a>                          fieldLength = buffer.readByte();
<a class="jxr_linenumber" name="70" href="#70">70</a>                          host = buffer.readBytes(fieldLength).toString(CharsetUtil.US_ASCII);
<a class="jxr_linenumber" name="71" href="#71">71</a>                          port = buffer.readUnsignedShort();
<a class="jxr_linenumber" name="72" href="#72">72</a>                          msg = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksCmdResponse.html">SocksCmdResponse</a>(cmdStatus, addressType);
<a class="jxr_linenumber" name="73" href="#73">73</a>                          <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="74" href="#74">74</a>                      }
<a class="jxr_linenumber" name="75" href="#75">75</a>                      <strong class="jxr_keyword">case</strong> IPv6: {
<a class="jxr_linenumber" name="76" href="#76">76</a>                          host = SocksCommonUtils.ipv6toStr(buffer.readBytes(16).array());
<a class="jxr_linenumber" name="77" href="#77">77</a>                          port = buffer.readUnsignedShort();
<a class="jxr_linenumber" name="78" href="#78">78</a>                          msg = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksCmdResponse.html">SocksCmdResponse</a>(cmdStatus, addressType);
<a class="jxr_linenumber" name="79" href="#79">79</a>                          <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="80" href="#80">80</a>                      }
<a class="jxr_linenumber" name="81" href="#81">81</a>                      <strong class="jxr_keyword">case</strong> UNKNOWN:
<a class="jxr_linenumber" name="82" href="#82">82</a>                          <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="83" href="#83">83</a>                  }
<a class="jxr_linenumber" name="84" href="#84">84</a>              }
<a class="jxr_linenumber" name="85" href="#85">85</a>          }
<a class="jxr_linenumber" name="86" href="#86">86</a>          ctx.getPipeline().remove(<strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="87" href="#87">87</a>          <strong class="jxr_keyword">return</strong> msg;
<a class="jxr_linenumber" name="88" href="#88">88</a>      }
<a class="jxr_linenumber" name="89" href="#89">89</a>  
<a class="jxr_linenumber" name="90" href="#90">90</a>      <strong class="jxr_keyword">public</strong> enum <a href="../../../../../../org/jboss/netty/handler/codec/socks/SocksInitResponseDecoder.html">State</a> {
<a class="jxr_linenumber" name="91" href="#91">91</a>          CHECK_PROTOCOL_VERSION,
<a class="jxr_linenumber" name="92" href="#92">92</a>          READ_CMD_HEADER,
<a class="jxr_linenumber" name="93" href="#93">93</a>          READ_CMD_ADDRESS
<a class="jxr_linenumber" name="94" href="#94">94</a>      }
<a class="jxr_linenumber" name="95" href="#95">95</a>  }
</pre>
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